CBSE Class 10: Dispersion of Light Videos | Dispersion of light through prism

• plzz telll
  
• (a)State the property of light that is used by the prism to form a spectrum.
  
• Explan the formation of rainbow with the help of diagram
• Sir , l have a doubt about refraction of glass prism.     
• Give an passage of recommendation of spectrum  colours to give white light
• When white light passing through prism it split into seven colours but when light passing through glass slab it can't split into seven colours why?
• Violet colour is seen at the bottom of the spectrum when white light is dispersed by a prism. State reasons to explain these observations.
• Why do stars twinkle?  
• What is a spectrum?
• Can we recombine the seven spectral colors to obtain white light? Justify your answer.

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